/Engine/Source/Developer/AnimationDataController/Public/AnimDataController.h
Sets a range of keys for an existing bone animation track with the provided name. Broadcasts a EAnimDataModelNotifyType::TrackChanged notify if successful. The provided number of keys provided is expected to match for each component, be between FrameLowerBound and FrameUpperBound (inclusive), and be non-zero.
Whether or not the keys were successfully set
virtual bool UpdateBoneTrackKeys ( [FName](API\Runtime\Core\UObject\FName) BoneName, const [FInt32Range](API\Runtime\Core\Math\FInt32Range) & KeyRangeToSet, const [TArray](API\Runtime\Core\Containers\TArray)< FVector > & PositionalKeys, const [TArray](API\Runtime\Core\Containers\TArray)< FQuat > & RotationalKeys, const [TArray](API\Runtime\Core\Containers\TArray)< FVector > & ScalingKeys, bool bShouldTransact )